28351273 has 8 divisors (see below), whose sum is σ = 28728000. Its totient is φ = 27977328.

The previous prime is 28351259. The next prime is 28351277. The reversal of 28351273 is 37215382.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28351273 - 2⁹ = 28350761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28351277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26140 + ... + 27202.

It is an arithmetic number, because the mean of its divisors is an integer number (3591000).

Almost surely, 2^28351273 is an apocalyptic number.

It is an amenable number.

28351273 is a deficient number, since it is larger than the sum of its proper divisors (376727).

28351273 is a wasteful number, since it uses less digits than its factorization.

28351273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391.

The product of its digits is 10080, while the sum is 31.

The square root of 28351273 is about 5324.5913458218. The cubic root of 28351273 is about 304.9234709005.

The spelling of 28351273 in words is "twenty-eight million, three hundred fifty-one thousand, two hundred seventy-three".